An NS detour runs through the Martin Marietta Aggregates Quarry at Pinesburg, Maryland. Due to the closure of NS's Middle Division, because of a train derailment, NS detoured intermodal trains via CSX's x B&O and xWM mains. NS trains 20E and 20K were consolidated at Conway Yard and ran down CSX as a Z450 to Hagerstown, Maryland, where the train will pick up NS trackage to Harrisburg, Pennsylvania.
